Screen filter for hot-air registers



Jan. 10, 1933. F. A. WALLOCH 1,393,571

SCREEN FILTER FOR HOT AIR REGISTERS Filed June 24, 1930 I m I} 1 1/6 II IN VEN TOR i??? 4. 500K A. Wa//0cfi Patented Jan. 10, 1933 p l 1 UNITED STATES PATENT DFFECE FRANK A. WALLOCH, OF SEATTLE, WASHINGTON SCREEN FILTER FOR HOT-AIR REGISTERS Application filed June24, 1930. Serial No. 463,445.

This invention relates to air filteringdespective view of a frame bracket or frame vices for heating registers, and more parsupport, parts being broken away. ticularly to improved devices having in- Reference being had thereto, and whereln creased capabilities over apparatus described the invention is exemplified as installed to and claimed in my United States Patent No. a register of, or which may be, well known :55 1,640,630 issued August 30, 1927. construction, the numeral 7 represents the The object, generally stated, is the proviwall of a room, apertured for the insertion sionof screening mechanism capable of betherein of the frame 8 of a register 9. 10 ing applied above the registers of a hot-air indlcates the grllled face therefor.

heating plant in effecting a most efficient More particularly to the present inven-zno filtering of the discharged air for purifying tion, I provide a screen frame 11 of a subthe same prior to its admission to the room. stantially arcuate configuration in transverse More particularly, an object of the invensection, laterally spaced apart supporting tion is the provision of devices of this charend members providing plane vertically aracter affording aready attachment or reranged outer ribs 12 terminating at upper moval of a screen supporting frame to and extremities in arcuately. shaped inwardly difrom conventional installations of hot-air rected flange portions 13 conforming to the registers, aforesaid transverse sectional contour. More A further object is theprovision of means particularly, said ribs are conformed to pre for e fiecting a ready detachment or insertion sent a bearing edge 14 for engagement to 1.70 ofa screen proper-to the supporting frame. the wall 7 the flange 13 projecting exte- Astill further object is the provision of riorly in a substantial horizontal plane for a screen support of the character described termination in a downturned hood 15. capable of affording a longitudinal adjust- Said end members are respectively adaptment in accommodating the multiplicity of ed to the secure retention of horizontal inter-W5 vari-sized register openings in use. connecting bar members16, 17 transversely Further objectsand advantages, more parspaced, one from the other, and aligned for ticularly with reference to simplicity, ornatelescoping sleeved engagement within mentation, and durability of construction toaligned alternately spaced bars of the comgether with the foregoing, will become appanion member. 80 parent in'the course ofthe following detailed Said bars, moreover, are advantageously description, and throughout the 'claims-anconformed in a substantial hollow confornexed thereto, the invention consisting in mation, elongatedslots 18 in the underneath the novel construction, adaptation and comface accommodating the intercession of the bination of vparts hereinafter described and upturned fingers 19 of spring-metal clips 20, 65 claimed. said clips being further conformed to provide Inthe drawing, a downturned elbow 21 medially of their Figure 1 is a transverse vertical :section length. In the crimping of a plurality of through 1-1 ofrFig. 2, of a conventional said clips to secure a'screen of foraminous register installation, the invention being material 22 for engagement to the under face 90 shown applied thereto. Fig. 2 is a front of the bars, the aforesaid fingers are engaged elevation, and Fig. 3 atop plan view of the by oppositional lips 23 of extreme outer bars, same,-taken to an enlarged scale. Fig. 4 is affording a spring tension in the inversion a detail transverse vertical section taken subof elbow 21 from a relative contraction, as stantially on line 4-4 of Fig. 3 in illustrating shown in dotted lines, to the spread disposi- 95 telescoping activity of cooperative supporttion, indicated by full lines in Figs. 1 and 5. mg bars. Fig. 51s a perspective view of the Said bar lip is further utilized in supportscreen clips shown in Fig. 1, indicating the ing the frame by a contactual engagement same inthe clamping disposition afforded by with lug 25, constituting a struck-up prothe spring conformation. Flg. 6 is a perjection from the horizontal bar seating face 26 of a retaining bracket 27, said bracket being conformed to provide a supporting leg 29, vertically disposed in the provision of an elongated slot 30 for receiving the plate-supporting bolt 31, said plate being adapted for passage through apertures of the register grille, compressed thereagainst through a suitable medium such as the wing nut 32.

The invention is believed clear from the foregoing, the companion frames being adjustably regulated for register-width through the telescoping activity of sleeved bars. The foraminous material is inserted and clamped through the instrumentality of the plural spring clips, ready attachment to the register-retained brackets 27 being accommodated byinterposing the lip portion of the innerbar between wall 7 and the struck-up lug 25.

Numerous structural changes might, it is believed, be readily resorted to, and it is not my intention to confine myself particularly tothe construction shown, except as by the scope of the hereto annexed claims.

. What I claim, is

1. In a filter for a hot-air register, the combination with the grille of the register, and brackets arranged for detachable securement through said grille, said brackets each providing a horizontally disposed arm engageable against the room wall above the register,

of. a frame adapted for seating engagement over said horizontal arm and providing spaced apart end members having an arcuate configuration in end elevation, said end members providing downturned wings contactually engageable with the room wall at opposite sides of the register, each of said end members providing rigid spaced-apart horizontal rod elements arranged for telescoping engagement to aligned rods of the other of said end members, the outer and innermost rods being conformed to provide recessions therein having slots communicating from underneath sides thereto, a screen member insertable along the underneath surface of said rods, and spring clips for detachably securing said screen, said spring clips being mounted transversely of the frame in juxtaposition of said screen and having upturned end extremities engageable through the slots to said rod recessions.

2. In a filter for a hot-air register, the combination with a frame, said frame comprising arcuately conformed end members each having horizontally projecting spaced-apart rods collectively conforming to the contours thereof, the rods of one end member telescopicallyengaging the rods of the other end member, a filtering screen, and means for detachably engaging said filtering screen against the frame rods to conform to the contour of said rods, of brackets co-operating with wallcontacting elements of said end members for supporting said frame to pro ect outwardly and over the register outlet, said brackets having means for detachably engaging the same with respect to th register and providing a horizontal platform thereabove, said platform having upturned lugs arranged to secure the innermost frame rod therebetween and the room wall.

3. In a filter for a hot-air register, the combination with a grilled frame having means for adjusting the length of the same, a filtering screen, and means for detachably securing said screen with respect to the grilled frame, of means for supporting said frame over the register outlet to project outwardly therefrom, said means comprising a horizontal platform detachably engageable with the register and adapted for the seating reception of a portion of the frame thereover, said platform providing upturned lugs for securing an innermost portion of the frame therebetween and the room wall.

4. In a filter for a hot-air register, the combination with a grilled frame, a filtering screen, and means for detachably securing said screen with respect to the grilled frame,

of means for supporting said frame over the register outlet to project outwardly therefrom,said means comprising a horizontal platform detachably engageable with the register and adapted for the seating reception of a portion of the frame thereover, said platform providing upturned lugs for securing an innermost portion of the frame therebetween and the room wall.

5. Structure for supporting a filtering screen for a hot-air register, comprising a frame conformed of a pair of end members having spaced apart rods projecting horizontally therefrom, the rods of one end member being aligned with and arranged for telescoping engagement with the rods of the other end member, said-telescoped rods collectively presenting, in transverse vertical section, an approximate horizontal inner portion and a downturned outer portion, the innermost and outermost rods being hollow and having openings communicating thereto through the underneath faces, and a plurality of spring clips arranged transversely of said frame and having opposite ends turned upwardly for insertion through said rod openings for engagement therein, said clips being adapted to detachably support a sheet of screening material therebetween and the frame.

6. Structure for supporting a filtering screen for a hot-air register, comprising a frame conformed of a pair of end members having parallel spaced-apart horizontal rods interconnecting the same, said rods collectively presenting, 1n transverse vertical section, an approximate horizontal inner portion and a downturned outer portion, and a plurality of spring clips, arranged transversely of said frame for supporting a sheet of screening material therebetween and the frame rods, said clips providing means cooperating With edge rods of the frame for detachably connecting said clips With the frame.

7 Structure for supporting a filtering screen for a hot-air register, comprising a frame conformed of a pair of end members having parallel spaced-apart rods intercon necting the same, and means constituting a plurality of individual spring clips detachably engageable with both lateral edges of said frame for clamping a sheet of screening material therebetween and the frame.

8. Structure for supporting a filtering screen for a hot-air register, comprising a frame conformed of a pair of end members having parallel spaced-apart horizontal rods interconnecting the same, and a plurality of spring clips arranged transversely of said frame for supporting a sheet of screening material therebetween and the frame rods, said clips providing means co-operating with edge rods of the frame for detachably connecting said clips with the frame.

9. Structure for supporting a filtering screen for the ascending hot air of a circulating heating system, comprising a grilled frame, and a plurality of spring clips adapted to be sprung to the approximate contour of the frame below the same for clamping a sheet of screening material therebetWeen and the frame, said frame providing means along both its lateral edges for detachably retaining said clips.

Signed at Seattle, WVashington, this 11th day of June, 1930.

FRANK A. WALLOCH. 

